Compare carbureted engine with MPFI engine
Sr.
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Carbureted fuel system
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Electronic fuel injection system
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1 |
Mal-distribution of charge.
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Uniform distribution of charge.
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2 |
Due to resistance in intake manifold volumetric efficiency is lower
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Improvement in volumetric efficiency due to less resistance in the intake manifold.
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3 |
Inaccurate metering of charge.
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Accurate metering of charge
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4 |
Carburetor Icing may take place.
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Formation of ice on the throttle plate is eliminated.
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5 |
Fuel atomization depends upon velocity of air in the venture.
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Atomization of fuel is independent of cranking speed therefore cranking is easier.
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6 |
Less atomization and vaporization will make the engine more knock prone.
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Better atomization and vaporization will make the engine less knock prone.
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7 |
Fuel need to be more volatile
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Less volatile fuel can be used.
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8 |
Fuel injection is take place inside the manifold.
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Fuel being injected into or close to the cylinder.
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